Improvement in machines for preparing moldings for gilding



U G STUART Machine for Preparing Moldings for Gilding. No.. 206,149.Patented July 16, 1878.

l PETERS. PHOTO LITIIOGRAPHER. WASHINGTON D C UNITED STATES PATENTOFFICE.

CHARLES C. STUART, OF NEV YORK, N. Y.

IMPROVEMENT IN MACHINES FOR PREPARlNG MOLDINGS FOR GILDING.

Specification forming part of Letters Patent No. 206,149, dated July 16,1878; application filed December 11, 1877.

To all whom it may concern Be it known that I, GHAnLEs (J. STUART, ofthe city, county, and State of New York, have invented an Improvement inMachines for Preparing Moldings for Gilding, 820.; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, which formpart of this specification.

My invention has for its objects economy of glue in the preparation ofthe white-stuff (usually made of glue and Whiting) employed for coatingwood moldings and economy of time and labor in its application to thewood. Hitherto, in the application of the white-stuff (commonly termedwhite a number of coats are necessary to obtain the required thicknessof coating upon the surface of the wood. By the use of my improvementthe required thickness of coating may be attained in a single operation.

A further advantage in the use of my improvement is that the white ispressed more firmly upon the wood, and that therefore a much firmeradherence is obtained.

Still another advantage is that, by the use of my improvement, I canmake the white of a much thicker consistency than is ordinarilyemployed, using much less glue in the solution which forms the vehiclefor the whiting, thereby effecting an important saving in the article ofglue, which is one of the chief items of cost in preparation ofmoldings.

Figure 1, in the accompanying drawings, is an end view of my improvedmachine for preparing moldings, that end being represented from whichthe molding issues after having the coat of white applied to it. Fig. 2is a View of the opposite end of the machine, or the end into which themolding is passed to receive the coat of white. Fig. 3 is a verticalsection on the line a: w in Fig. 1.

A represents a box, into which the white 0, Fig. 3, is placed forapplication to the wood molding. B is a detachable templet, screwed orotherwise attached to the lower part of said box on the side into whichthe molding is passed for receiving its coat of white. B is also adetachable templet, screwed or otherwise attached to that side of thebox from which the molding is passed out after having received its coatof white. Said coat is represented at w in Figs. 1 and 3. The templet Bis adapted in form to the contour of the cross-section of the moldingprevious to the application of the white. The templet B is formed togive the requisite contour to the exterior part of the coating of white.D represents the molding pushed partly through the machine and havingits coating of white partly applied thereto.

The prepared white-stuff G is placed in the box A, and is pressed downupon the molding D by means of the loaded follower E. A weighted leverfor forcing said follower down upon the prepared white-stuff ispreferred, but a heavy weight directly applied to said follower, orother means for pressing said follower down upon said preparedwhite-stud, may be employed.

The templet B has, preferably, an inward projection, G, which extendsinto the box and the contained mixture 0, and which has on its underside a channel, H, said channel narrowing down toward the part fromwhich the molding passes out of the machine. By this means a wedgingaction of said prepared white-stuff is exerted between the saidprojection Gr and the molding D, which greatly assists in pressing thesaid white-stuff down upon said molding.

When it is desired to prepare a molding by the use of this machine, saidmolding is passed into the box on that side to which the templet B isattached, and passed far enough through to bring the end so insertedunder the templet B. The prepared white-stuff is then placed in the boxand the follower E made to bear firmly and heavily upon its uppersurface, but not so heavily as to force the white out of said boxthrough the opening between the molding and the templet B, the objectsof the pressure being to render the white more adherent to the wood andto enable me to work a thicker or less fluid mixture of glue and whitingthan I could otherwise use. The molding is then pushed entirely throughthe machine in the direction indicated by the arrow in Fig. 3, and whenso passed through is covered and coated with a uniform thickness of thewhite-stuff, which is rendered firmly adherent to the wood by thepressure which has been brought to bear upon it.

The box A is provided with a hinged or removable bottom, I, Fig. 3,which, when open, permits the thorough cleaning of the maehine, andwhich, when closed, acts as a support for the under side of the moldingI). In general, a single passage of the molding through the machine issutiicient to cover it with a beautiful smooth coating of white havingthe desired thickness for the subsequent operations to which the moldingis to he subjected.

Boxes with attached templets have heretofore been used to apply the\YllllQSllllf to moldings; but, as the only force by which saidwhite-stufi' is brought to bear upon the molding is its own gravity, insuch machines the said prepared white-stuti' has to be made of a thinnerconsistency than is necessary in my machine, and the molding has to bepassed a number of times through the templets to acquire the requisitethickness. The light pressure in such maehines has been insufiieient tocause a strong adherence of the white-stuff to the wood, and hence thecoating has been very easily detached by slight blows or shocks inhandling and gilding.

In the use of my machine I make the white stuff of a much strongerconsistency than heretofore, using much less glue and wa ter in itspreparation; and, by the increased pressure caused by the follower, lrender the coating very much more strongly adherent to the wood aml lessliable to become detached during the subsequent manipulations.

It is obvious that. instead of passing the molding through the box, themolding may be held stationary and the box, guided by suit able ways,may he passed over the molding.

Moreover, instead of using the follower E, the upper part of the box maybe closed airtight and the white-stuff in the box be subjected topressure through the introduction of air or other gaseous substanceforced into said box.

1 claim- 1. The combination, with the box for containing thewhite-stuff, templet I), fitted to the contour of the wood molding, anda templet, B, fitted to the exterior contour of the coating of white, ofmeans for producing artificial pressure upon said white-stuff, forrenderin g said whitestufl' more adherent to the molding, and forenabling a less fluid mixture of said white-stufi' to be used,substantially as and for the purpose described.

2. The combination, with the box A and templets B B, one of which isfitted to the contour of the wood molding and the other fitted to theexterior contour of the coating of white, of the. weighted or loadedfollower E, substantially as and for the purpose specified.

3. The combination of the box A, the templets B B, titted, one to thecontour of the wood molding, the other to the exterior coir tour of thecoating of white, the follower E, and the weighted lever F,substantially as and for the purpose specified.

4. The combination, with the box A, of a hinged or removable bottom, I,acting as a support for the molding l), substantially as aml for thepurpose set forth.

CHARLES S'll'All".

\\itnesses:

l man. HAYNES, linwxnn ll. SIERRY.

